stage2h22

I have a JDM h22a motor, and since I got it back from the shop after doing a timing belt tensioner replacement it only redlines at around 6200-6500 rpms. Isn't the stock redline like 7200rpms? Whats causing this? How can I fix it?

92 SI Ludester

stick or auto? and are you waiting for the car to warm up? when the car is cold it wont go into vtec and has a shorter redline

if auto make sure you have the jdm tcm. i have the usdm one from my si and i redline at 6500 instead of 7200

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azjs

Sounds like a sensor issue to me. Vtec oil pressure sensor and speed sensors are a couple of them that I know can cause the car to cutoff at around 6500 if malfunctioning.

Either way take it make to the place that did your tensioner and tell them it started happeningexactly after you got it from the shop

-az

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dublued

you should be getting a check engine light.

sounds like you are trying to redline while the car is cold or the ecu has gone into limp mode (no vtec, redline at 6500)

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-Omair
2004 Mazda 3 Hatchback

stage2h22

the car was warmed up, the redline occured when changing interstates after about 25 min of driving. Im not getting a check engine light, and the car is a 5 speed.

azjs

Limp mode cuts out at 3K. Idles at 1.5K.

After my swap, we forgot the vtec oil sensor - no engine light. So be aware... sensors will only work and send the right signal to the ecu if they are working...

-az

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